Different types of SCD’s which developer develops and a tester has to test as per different types of data needs of clients

We implement SCD-1 and SCD-2 in class to show the implementation part more transparently and explain SCD-3 to define how to work on limited historical data as well which is used sometimes

Types:

• TYPE1 SCD

• TYPE2 SCD

• TYPE3 SCD

ETL Tool Implementation and Testing Concepts:

Basic Concepts In Sql (Select, Update, Insert and Delete)

How to design frequently used testing queries to validate the data in source and target for both of the reasons Data Quality and Correctness to ensure that expected data came into the final and mediator target tables or not.

Overview Of Etl Tool Architecture

How ETL tool works and what is the basic need of ETL tools in the market,

What are the similarities between ETL tools and SQL

Why we use ETL Tools if SQL is the only standard which any Database or Data Warehouse can use

How ETL Tools work at back end

Different ETL Tools in the market

What types of tasks tester performs on ETL for testing purpose

Informatica PowerCenter (Leading tool in the market)

Coding and testing process in different transformation rules:

• SAMPLE Loading from source to target

• SORTER Transformation

• FILTER Transformation

• EXPRESSION Transformation

• JOINER Transformation

• UNION Transformation

• AGGREAGATOR Transformation

• SEQUENCE GENERATOR Transformation

• SQL Transformation

We provide this practice as additional benefit to you so that you can implement jobs by yourself to understand that what developers do in real time which you have to test.

Testing Techniques in ETL

MINUS Query

COUNT Query

UNION Query

JOIN Query

Informatica PowerCenter

How developers work on PowerCenter

Different components of PowerCenter

Tasks developed in different components

Data Stage

What is Data Stage

Differences between Informatica PowerCenter and DataStage

Components of DataStage

Differences between ETL development process in Informatica and DataStage